{"calculation_version":"2026-10-10.1","forecast_source":"none","night_date":"2026-12-25","schedule":[{"end":"2026-12-25T16:05Z","end_local":"18:05","hours":1.17,"mean_quality":0.0,"start":"2026-12-25T14:55Z","start_local":"16:55","target":null},{"end":"2026-12-25T17:35Z","end_local":"19:35","hours":1.5,"mean_quality":0.69,"start":"2026-12-25T16:05Z","start_local":"18:05","target":"V1057 Cyg"},{"end":"2026-12-25T19:05Z","end_local":"21:05","hours":1.5,"mean_quality":0.72,"start":"2026-12-25T17:35Z","start_local":"19:35","target":"NGC 7000"},{"end":"2026-12-25T20:35Z","end_local":"22:35","hours":1.5,"mean_quality":0.72,"start":"2026-12-25T19:05Z","start_local":"21:05","target":"M31"},{"end":"2026-12-25T22:05Z","end_local":"00:05","hours":1.5,"mean_quality":0.61,"start":"2026-12-25T20:35Z","start_local":"22:35","target":"M33"},{"end":"2026-12-25T23:35Z","end_local":"01:35","hours":1.5,"mean_quality":0.45,"start":"2026-12-25T22:05Z","start_local":"00:05","target":"M45"},{"end":"2026-12-26T00:25Z","end_local":"02:25","hours":0.83,"mean_quality":0.31,"start":"2026-12-25T23:35Z","start_local":"01:35","target":"M42"},{"end":"2026-12-26T00:55Z","end_local":"02:55","hours":0.5,"mean_quality":0.35,"start":"2026-12-26T00:25Z","start_local":"02:25","target":"M45"},{"end":"2026-12-26T05:50Z","end_local":"07:50","hours":4.92,"mean_quality":0.0,"start":"2026-12-26T00:55Z","start_local":"02:55","target":null}],"targets":[{"best_window":{"end":"2026-12-25T21:30Z","end_local":"23:30","hours":4.83,"label":"good","mean_quality":0.74,"start":"2026-12-25T16:40Z","start_local":"18:40"},"dec":41.26875,"moon_separation":91.4,"name":"M31","quality_hours":4.93,"ra":10.68470833,"resolved":{"common_name":"Andromeda Galaxy","dec":41.26875,"morphology":"SA(s)b","name":"M 31","ra":10.68470833,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M31","source":"sesame","type":"AGN","type_text":"galaxy with an active nucleus","vmag":3.44},"score":null,"score_astronomy":100,"score_weather":null,"transit":{"airmass":1.0,"alt":89.6,"az":227.2,"t":"2026-12-25T16:50Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-25T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T14:55Z","start_local":"16:55"},{"end":"2026-12-25T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2026-12-25T15:30Z","start_local":"17:30"},{"end":"2026-12-25T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.5,"start":"2026-12-25T16:05Z","start_local":"18:05"},{"end":"2026-12-25T21:30Z","end_local":"23:30","hours":4.83,"label":"good","mean_quality":0.74,"start":"2026-12-25T16:40Z","start_local":"18:40"},{"end":"2026-12-25T23:20Z","end_local":"01:20","hours":1.83,"label":"marginal","mean_quality":0.5,"start":"2026-12-25T21:30Z","start_local":"23:30"},{"end":"2026-12-25T23:30Z","end_local":"01:30","hours":0.17,"label":"poor","mean_quality":0.29,"start":"2026-12-25T23:20Z","start_local":"01:20"},{"end":"2026-12-26T05:50Z","end_local":"07:50","hours":6.33,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T23:30Z","start_local":"01:30"}]},{"best_window":{"end":"2026-12-26T00:25Z","end_local":"02:25","hours":6.25,"label":"marginal","mean_quality":0.38,"start":"2026-12-25T18:10Z","start_local":"20:10"},"dec":-5.3876,"moon_separation":47.3,"name":"M42","quality_hours":2.68,"ra":83.8201,"resolved":{"common_name":"Great Orion Nebula","dec":-5.3876,"name":"M 42","ra":83.8201,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M42","source":"sesame","type":"HII","type_text":"HII region \u2014 a star-forming nebula"},"score":null,"score_astronomy":30,"score_weather":null,"transit":{"airmass":1.47,"alt":42.9,"az":180.0,"t":"2026-12-25T21:40Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-25T17:55Z","end_local":"19:55","hours":3.0,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T14:55Z","start_local":"16:55"},{"end":"2026-12-25T18:10Z","end_local":"20:10","hours":0.25,"label":"poor","mean_quality":0.27,"start":"2026-12-25T17:55Z","start_local":"19:55"},{"end":"2026-12-26T00:25Z","end_local":"02:25","hours":6.25,"label":"marginal","mean_quality":0.38,"start":"2026-12-25T18:10Z","start_local":"20:10"},{"end":"2026-12-26T01:30Z","end_local":"03:30","hours":1.08,"label":"poor","mean_quality":0.23,"start":"2026-12-26T00:25Z","start_local":"02:25"},{"end":"2026-12-26T05:50Z","end_local":"07:50","hours":4.33,"label":"unusable","mean_quality":0.0,"start":"2026-12-26T01:30Z","start_local":"03:30"}]},{"best_window":{"end":"2026-12-25T19:25Z","end_local":"21:25","hours":2.75,"label":"good","mean_quality":0.66,"start":"2026-12-25T16:40Z","start_local":"18:40"},"dec":24.11388889,"moon_separation":60.9,"name":"M45","quality_hours":4.92,"ra":56.60083333,"resolved":{"common_name":"Seven Sisters","dec":24.11388889,"name":"Cl Melotte 22","ra":56.60083333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M45","source":"sesame","type":"OpC","type_text":"open cluster"},"score":null,"score_astronomy":91,"score_weather":null,"transit":{"airmass":1.05,"alt":72.5,"az":178.7,"t":"2026-12-25T19:50Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-25T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T14:55Z","start_local":"16:55"},{"end":"2026-12-25T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.13,"start":"2026-12-25T15:30Z","start_local":"17:30"},{"end":"2026-12-25T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.44,"start":"2026-12-25T16:05Z","start_local":"18:05"},{"end":"2026-12-25T19:25Z","end_local":"21:25","hours":2.75,"label":"good","mean_quality":0.66,"start":"2026-12-25T16:40Z","start_local":"18:40"},{"end":"2026-12-26T00:55Z","end_local":"02:55","hours":5.5,"label":"marginal","mean_quality":0.48,"start":"2026-12-25T19:25Z","start_local":"21:25"},{"end":"2026-12-26T01:30Z","end_local":"03:30","hours":0.58,"label":"poor","mean_quality":0.25,"start":"2026-12-26T00:55Z","start_local":"02:55"},{"end":"2026-12-26T05:50Z","end_local":"07:50","hours":4.33,"label":"unusable","mean_quality":0.0,"start":"2026-12-26T01:30Z","start_local":"03:30"}]},{"best_window":{"end":"2026-12-25T19:10Z","end_local":"21:10","hours":2.5,"label":"good","mean_quality":0.76,"start":"2026-12-25T16:40Z","start_local":"18:40"},"dec":44.33,"moon_separation":113.0,"name":"NGC 7000","quality_hours":2.64,"ra":314.69583333,"resolved":{"common_name":"North America Nebula","dec":44.33,"name":"NGC 7000","ra":314.69583333,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=NGC%207000","source":"sesame","type":"Cl*","type_text":"star cluster"},"score":null,"score_astronomy":62,"score_weather":null,"transit":{"airmass":1.0,"alt":87.3,"az":358.3,"t":"2026-12-25T13:05Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-25T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T14:55Z","start_local":"16:55"},{"end":"2026-12-25T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2026-12-25T15:30Z","start_local":"17:30"},{"end":"2026-12-25T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.48,"start":"2026-12-25T16:05Z","start_local":"18:05"},{"end":"2026-12-25T19:10Z","end_local":"21:10","hours":2.5,"label":"good","mean_quality":0.76,"start":"2026-12-25T16:40Z","start_local":"18:40"},{"end":"2026-12-25T20:00Z","end_local":"22:00","hours":0.83,"label":"marginal","mean_quality":0.46,"start":"2026-12-25T19:10Z","start_local":"21:10"},{"end":"2026-12-26T05:50Z","end_local":"07:50","hours":9.83,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T20:00Z","start_local":"22:00"}]},{"best_window":{"end":"2026-12-25T19:10Z","end_local":"21:10","hours":2.5,"label":"good","mean_quality":0.76,"start":"2026-12-25T16:40Z","start_local":"18:40"},"dec":44.25788576,"moon_separation":113.1,"name":"V1057 Cyg","quality_hours":2.64,"ra":314.72388973,"resolved":{"dec":44.25788576,"name":"EM* LkHA 190","ra":314.72388973,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=V1057%20Cyg","source":"sesame","spectral_type":"F7/G3I/IIe","type":"Or*","type_text":"Orion-type variable \u2014 a young, erupting star","vmag":12.33},"score":null,"score_astronomy":62,"score_weather":null,"transit":{"airmass":1.0,"alt":87.3,"az":358.7,"t":"2026-12-25T13:05Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-25T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T14:55Z","start_local":"16:55"},{"end":"2026-12-25T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2026-12-25T15:30Z","start_local":"17:30"},{"end":"2026-12-25T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.48,"start":"2026-12-25T16:05Z","start_local":"18:05"},{"end":"2026-12-25T19:10Z","end_local":"21:10","hours":2.5,"label":"good","mean_quality":0.76,"start":"2026-12-25T16:40Z","start_local":"18:40"},{"end":"2026-12-25T20:00Z","end_local":"22:00","hours":0.83,"label":"marginal","mean_quality":0.46,"start":"2026-12-25T19:10Z","start_local":"21:10"},{"end":"2026-12-26T05:50Z","end_local":"07:50","hours":9.83,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T20:00Z","start_local":"22:00"}]},{"best_window":{"end":"2026-12-25T21:30Z","end_local":"23:30","hours":4.83,"label":"good","mean_quality":0.73,"start":"2026-12-25T16:40Z","start_local":"18:40"},"dec":30.66017511,"moon_separation":87.0,"name":"M33","quality_hours":4.96,"ra":23.46206906,"resolved":{"common_name":"Triangulum Pinwheel","dec":30.66017511,"morphology":"SA(s)cd","name":"M 33","ra":23.46206906,"simbad_url":"https://simbad.cds.unistra.fr/simbad/sim-id?Ident=M33","source":"sesame","type":"GiG","type_text":"galaxy in a group","vmag":5.72},"score":null,"score_astronomy":100,"score_weather":null,"transit":{"airmass":1.02,"alt":79.1,"az":180.7,"t":"2026-12-25T17:40Z"},"verdict":"unknown","weather_known":false,"windows":[{"end":"2026-12-25T15:30Z","end_local":"17:30","hours":0.58,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T14:55Z","start_local":"16:55"},{"end":"2026-12-25T16:05Z","end_local":"18:05","hours":0.58,"label":"poor","mean_quality":0.15,"start":"2026-12-25T15:30Z","start_local":"17:30"},{"end":"2026-12-25T16:40Z","end_local":"18:40","hours":0.58,"label":"marginal","mean_quality":0.5,"start":"2026-12-25T16:05Z","start_local":"18:05"},{"end":"2026-12-25T21:30Z","end_local":"23:30","hours":4.83,"label":"good","mean_quality":0.73,"start":"2026-12-25T16:40Z","start_local":"18:40"},{"end":"2026-12-25T23:30Z","end_local":"01:30","hours":2.0,"label":"marginal","mean_quality":0.5,"start":"2026-12-25T21:30Z","start_local":"23:30"},{"end":"2026-12-25T23:40Z","end_local":"01:40","hours":0.17,"label":"poor","mean_quality":0.28,"start":"2026-12-25T23:30Z","start_local":"01:30"},{"end":"2026-12-26T05:50Z","end_local":"07:50","hours":6.17,"label":"unusable","mean_quality":0.0,"start":"2026-12-25T23:40Z","start_local":"01:40"}]}],"unscheduled":[],"warnings":[]}
